Spring-winding machine.



B. P. HAYES.

SPRING WINDING MACHINE.

APPLICATION FILED JUNE 2. I916.

2 SHEETS-SHEET 1.

lNVE/V TOR.

5P Hayes.

"II II II A TTORNEY Patentd Maj 28,1918.

B. P. HAYES.

SPRING WINDI G MACHINE. .APPLICATION FILED IUNE 2.1916- Patented May28,1918.

2 SHEETSSHEET 2.

INVLN TOR.

" 01m, so i t: i

SEEING-WINDING MACHINE.

To all whom it may concern:

a citizen of the United States, residing at 'Kansas City, in the countyof Jackson and State of Missouri, have invented certain new and usefulImprovements in Spring-Winding Machines; and I do declare the followingto be a full, clear, and exact descrlptlon of the invention, such asw1ll enable others skilled in the art to which it appertams to make anduse the same, reference being had to the accom anying drawings, and tothe letters and gures of reference marked thereon, which form a part ofthis specification.

My invention relates to spring winding mechanism, and has for its objectto provide a machine of this character whereby the diameter or flight ofa spring may be varied by slight and simple adjustments and whereinmeans is provided for accommodating spring wires of difierent gage.

In accomplishing this object, I have provided details of structurehereinafter described and illustrated in the accompanying drawings,wherein Figure is a perspective view of a spring winding machineconstructed according to my invention.

Fig. TI is a horizontal vertlcal section of the same. I

Fig. HT is a vertical section on the line IHII][ Fig. IT.

Fig. IV is a detail perspectlve view particularly illustrating thewinding points and adjusting mechanism.

Fig. V is a perspective view of a removable winding point.

Fig. VI is a sectional view on the line V][VI Fig. 11, showing thepivotally supported bearing of the winding shaft.

Referring more in detail to the drawg 1 designates a machlne embodyingmy 1ntit vention comprising a base member 2, having end standards 34thereon which revolubly support the converging winding spindles 5, 6 and7.

The paired lower or base s indles 6 are revolubly mounted at theirorward ends in bearings 3 in the standard 3 and at their I opposite endsin bearings 4! in the standard 4, and are provided with.po1nted endportions 5 -6 that extend forwardly from the specification of LettersPatent.

Patented Mwy bearings 3, and terminate adjacent each other and operatein the same axial plane.

The upper spindle 7, which I designate the pressure spindle as it tendsto force the wire into a recess between other lower spindles 5-6, isprovided with a removable point 7 and carried at its forward end in ablock 8 that is slidably mounted in a slot 9 in the standard 3, and in abearing 10 that is pivotally mounted in an opening 12 in the standard 4by means of set screws 13, which are threaded through bosses 14; in thestandard 4 and seat in sockets 15 on opposite sides of the bearing 10,so that the spindle may rock thereon and may be adjusted at its forwardend toward or from the converging points of the lower s indles.

The means for adjusting the s aft 7 comprises a thumb screw 16 which isthreaded through a cross bar 17 on the standard 3 and bears against theupper face of the block 8, which carries the shaft and is slidable inthe slot 9.

Located beneath the block 8 at the base of the slot 9, is a socket 20,which extends downwardly within the bearings 3' and seated therein is acoil spring 21, which yieldingly supports a pin 22 which extends fromthe soc et and bears at its upper end against the block 8, so that byadjustin the screw 16 the bearing 8 may be raised or owered to' adjustthe point 7' of the upper spindle toward or away from the lower spindlepoints.

The spindle 7 is extended outwardly from the bearing 10 and is providedat its end with a crank 25 whereby it may be revolved to wind thespring, as will presently be described, and mounted on the said spindlebetween the standards is a bevel gear wheel 26 which meshes with likegears 2728 on the lower spindles 5-6 and whereby the lower spindles arerotated simultaneously with the upper spindle.

The tapered point 7 of the upper spindle is provided adjacent the saidpoint with a peripheral groove 29 within which the spring wire is fedand guided as it is rolled between the converging spindle points to formthe spring convolutions.

Tn winding a spring, a straight piece of spring wire of a gage to givethe desired strength is fed between the converging 'points 5-67 throughthe guide groove 29 in the" upper spindle, and the upper spindle is tigtened thereagainst by ad usting the set screw, so that as the wirepasses between the spindle points it will be bent in the arc of a circleand by continued winding will be formed in convolutions which may begiven any desired spacing or flight standard 3 parallel wlth the shaft 7;-the' arm 30 being held in any adjusted position by a set screw 35 andthe block being held to its adjusted position on the shaft 32 by a setscrew- 36.

In order that spring wire of difierent diameter or gage may e used, itis necessary that the upper spindle, which is provided with the guidegroove 29, be made removable, so that a s indle containing a groove ofdifierent wi th or depth may be inserted. This is done by providing thespindle with an internally thread end socket 40 andthe point 7 with ashank 42, which'may be threaded into the socket and has a shoulder 43for seating against a corresponding shoulder 44 on the windingmdle.

I also provide a guard 46 which is attached to the rear standard 4 andclosely overlies the driving gears as a protection to the operator ofthe machine.

Presuming the parts to be so constructed, it will be seen that a s ringof a desired diameter may be form by adjusting the grooved point towardor from the ower points to give the spring a eater or smaller radlus ofcurvature, an that the flight of the spring convolutions may be spacedby shifting the guide arm on the s aft so that as the wire is woundthrough the indles it engages therewith and is curve outwardly t ereby;the flight of the convolution corresponding to the degree of thecurvature given the wire as it comes from between the spindles.

It is also ap arent that the points of the winding, ind e may beremoved, so that one provi ed with a groove of a desired curvature maybe inserted to accommodate small or large wire and that the springconvolutions may be closed, or spread to ,make either a compression orextension spring. 4

Having thus described my invention, what claim as new therein and desireto secure by Letters-Patent, isz- 1. A spring winding machine comprisinbase spindles having upwardly-incline converging axes and terminating inconical points, a pressure spindle rotatably mounted on an axisequidistant from those of the base spindles and at an angle convergentrelative thereto, the pressure spindle havin a tapered point lyingbetween the points 0 verse nseaser thebase spindles to form a tortuoustransath therebetween, and said tapered point aving a'cir'cumferentialgroove adacent its smallenend for retaining a spring wire againstmovement along the spindles. 2. A ring winding machine COIDPIlSHlf basespindles having upwardly-incline converging axes and termmatm in comcapoints, a pressure spindle rotata ly mount ed in an axis equidistantfrom those of the base spindles and at an angle convergentrelativethereto, the pressure spindle havin a ta eredpoint lying betweenthe points 0 the ass spindles to form a tortuous transverse paththerebetween, said tapered point having a circumferential grooveadjacent its smaller end for retaining a spring wire against movementalong the spindles, and

means for rotatin the paired spindles and ressure s in e in clockwiseand counter-c ockwise irections respectively.

3. A spring winding machine comprisin base spindles havingupwardly-incline converging axes and termmatingbin conical points, apressure spindle rotata 1y mounted on an axis equidistant from those ofthe base spindles and at an angle convergent relative thereto, thepressure spindle havin a tapered point lying between the points 0 thease spindles to form a tortuous transverse path therebetween, and saidtapered point having a circumferential groove adjacent its smaller endfor retaining a spring wire against movement along the spindles, gearwheels on the base s indles, a gear wheel on the pg'essure spind emeshin with the gear whee on both of the base spindles, and means forrotating the ressure spindle.

4.- A spring winding mac ine comprising a base member having s acedstandards thereon, a air of conica y pointed spindles revolu 1y carriedby said standards with the smaller ends extending in the same direction,a spindle revolubly mounted above said paired spindles with its axis ina plane that would bisect the axial plane of the paired spindles, andhaving a conical point closely overlying the conical points of the firstnamed spindles, means for adjusting the last named s indle point towardor from the first name 1points, means for simultaneously rotating t espindle points,

so that a wire rolled therebetween'will be means for rocking pivotalmounting to thereof toward or of the paired spin 5 forth.

bination with a meme? 6. In a spring winding machine, the coinpair ofconically pointed spindles placed with their smaller ends in the samedirection,

1 spindle, having its the axial plane of revolubly support of aconically pointed axis in a plane bisecting the paired spindles and ednear its pointed end in a end in a pivota slidable bearing, and at itsopposite 11y supported bearing, a

spring pressed pin engaging the under face of the adjustable spindle tourge it away from the lower s indle bearing against t able bearing forpoints and a screw e upper face of said slldadjusting the same towardthe paired spindle points for the purpose set forth.

In testimony whereof I afix my signature.

BENJIN P. HAYES.

